| 摘要 |
PURPOSE:To make it possible for a mobile subscriber to make an answer outgoing call immediately when returning to a car and also to miniaturize a unit, by displaying a calling subscriber's number at the time of incoming in case that the mobile subscriber leaves the car. CONSTITUTION:In case that a subscriber carrying answering radio calling unit 10 attachable to and detachable from car telephone radio unit 8 leaves a car, the number of a called mobile subscriber's of control channel P-CH for incoming, when a general call is made by base station 5, is collated with his own subscriber's number and his own call is discriminated by the coincidence result to send information on the request of the calling subscriber's number to P-CH. Base station 5 transfers the information of common controller 4 of exchange 3. Equipment 4 requests fixed station 2 to send the calling subscriber's number and transfers the obtained calling subscriber's number to base station 5. Equipment 10 receives the calling subscriber's number via P-CH, which is displayed by a display method. |
